Unigas HRX2060, Manual Of Installation - Use - Maintenance

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PART IV: MAINTENANCE
42
At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry
out the maintenance at the end of each heating season; in the case of continuous operation the maintenance is carried out every 6
months.
ROUTINE MAINTENANCE

Clean and examine the gas filter cartridge and replace it if necesssary;

Remove and clean the combustion head;

Examine and clean the ignition electrodes, adjust and replace them if necessary;

Examine and clean the detection electrode/photoelement (according to the burner models), replace it if necessary, in case of
doubt, check the detection circuit, after the burner start-up;

Clean and grease leverages and rotating parts.
Gas filter maintenance
1 Close the bowl valve before the self cleaning filter
2 Switch off any electrical equipment on board on the filter (example motorization or heaters)
3 Disconnect the outlet pipe from the cover of the self cleaning filter
4 Remove the cover with all the filter pack, leaving only the bowl on the line
5 Clean any residue on the bottom of the bowl and clean the seat of the O-ring seal
6 Insert the filter pack again making sure to respect the correct inlet/outlet direction or any references on the cover and tray
7 Replace the filter by following the reverse order operations
8 Make sure there is no leakage and give the power to any electrical equipmente on the filter
WARNING: ALL OPERATIONS ON THE BURNER MUST BE CARRIED OUT WITH THE MAINS DISCONNECTED
AND THE FUEL MANAUL CUTOFF VALVES CLOSED!
ATTENTION: READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNIG OF THIS MANUAL.
DANGER! Incorrect motor rotation can seriously damage property and injure people.
ATTENTION: when servicing, if it was necessary to disassemble the gas train parts, remember to execute the gas
proving test, once the gas train is reassembled, according to the procedure imposed by the law in force.
WARNING: Before opening the filter, close the manual cutoff valve downstream the filter and bleed the gas; check
that inside the filter there is no pressurised gas.
Thecnical procedure of self cleaning filters substitution (valid for all models)
WARNING! Drain the system by unscrewing the drain screw on the bottom of the self cleaning filter
WARNING! Replace the O-ring seal between the bowl and cover
PART IV: MAINTENANCE
C B A
To clean or remove the filter, proceed as follows:
1 remove the cap unscrewing the fixing screws (A);
2 remove the filtering cartridge (B), clean it using water and soap, blow it
with compressed air(or replace it, if necessary)
3 replace the cartridge in its proper position taking care to place it
inbetween the guides as not to hamper the cap replacement;
4 be sure to replace the “O” ring into its place (C) and replace the cover
fastening by the proper screws (A).